Back on the market! Due the popularity of the triple Campagnolo, they decided to create a new Athena Triple 11-speed rear derailleur. It is the heart of the groupset and the most important player, The Campagnolo Athena 11-speed rear derailleur is built according to the 11-speed guidelines. Ultra-Shift front plate in aluminium provides rigidity and increases the precision and speed when shifting, reduces play, extends life span and is corrosion resistant. Ultra-Shift Parallelogram increases rigidity and thus the speed and accuracy of shifting, and reduces its weight. An Ultra-Shift body in aluminium, which translates into a bigger stress resistance, the reduction of play and better shifting performance. Jockey wheels in special light-weight material reduces the weight and the annoying vibrations of the chain.